Carbid-feed mechanism for acetylene-gas generators.



PATENTED DEC. 10, 1907.

A. E. SGHLIEDER. CARBID FEED MECHANISM FOR ACETYLENE GAS GENERATORS.

APPLICATION FILED MAY 25. 1906.

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em] iiiiliiiiii lllllllliilllil Ju uJZuJ'Z SZZLZzLeJeI; I jr itior fiiwd's'es. v H L! W 1/ M M No. 873,176. 7 PATENTED DEC. 10, 1907. A. E. SCHLIEDER.

GARBID FEED MECHANISM FOR. ACETYLENE GAS GENERATORS.

APPLICATION FILED MAY 25.1906.

2 SHEETS-SHEET 2.

firney.

- To all whom it may concern:

Be it known that I, AUoUsrUs E.Sc1 rLIn- DER, a citizen of the United States, residing UNITED STATES PATENT onFIcE.

AUGUSTUS E. SGHLIEDER, OF BUFFALO, NEW YORK, ASSIGNOR TO MONARCH ACETYLENE GAS COMPANY, OF OMAHA, NEBRASKA, A CORPORATION OF NEBRASKA.

cannm-mnn MECHANISM FOR. AQETYLENE-GAS en'nnnn'rons. v

at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Carbid-Feed Mechanism for Acetylene Gas Generators, of which the following is a specification.

This invention relates to carbid feedmechanism for acetylene generators, and its primary object is the (production of, feedmechanism, in which a ouble closure is provided between the carbid-receptacle and the gas-generating-chamber to prevent the over feeding of carbid if for any reason any of the feeding-mechanism should refuse to operate.

e Other objects are, the rovision of positive and simple contro g mechanism whereby either of the closures is held closedwhile the other is open; to provide a double hopper for the car id-receptacle to so arrange the closures with respect to each other that a measured'quantity of'carbid is fed into the gas generating-chamber at each charge; and to otherwise improve on feeding-mechanism for this ur ose now in use.-

' To these on s t e invention consists in the construction, arrangement, and combination of parts to be hereinafter described and pointed out in the appended claims. 4

, In the drawings Figure 1 is a side elevation of that portion of an acetylene gas-generator containing the feed-mechanism. v Fig. 2 is a central vertical section taken on line 2 2, Fig. 3, looking toward the left. Fig. 3 is a central vertical section taken on line 33, Fig. 1. Figs. 4 and 5 are side elevations. of

0 the controlling mechanism, showing the same in different positions. Fig. 6 is a section similar to Fig. 2, showing the valves in a different position. Fig. 7 is a plan view of the parts shown in Fig. 1. Fig.8 is adetached perspective View of the retaining- Y lever of the controlling-mechanism. Fig. 9

is a perspective view of the curved trip-cam. Fig. 10 1s a vertical section taken on line 1010, Fig. 3, looking in the direction of the arrow crossing said line. Fig. 11 is a section taken on line 11.11, Fig. 7.

Referring to the drawings in detail, like letters of reference 'refer to like parts in the several figures.

The reference letter A designates the valvechamber which may be of any form or size,

Specification of Letters Patent. Application at m '25. 1906. Serial no.

and which is located between the carbid-receptacle B and the gas generating-chamber O ,of the generator. The valve-chamber is se-.

Patented'Dec. 10, 1907.

cured to generating-chamber. C by means of a casting D, and the carbid-receptacle is so;

cured to the upper end of the valve-chamber by means of a casting E. Within the carbid-receptacle at the lower end thereof is a breaker-wall in the form of a:

hoppler' or conical tube F having its lower or 'sma end separated from the surrounding wall by an annular space G, and projecting downward into the valve-chamber C is a ho per or conical tube H which is located be ow the hopper or tube F and whose upper or large end 1s of greater diameter than the lower or small end of tube F. In this manner a double hopper-bottom is provided, the upper of which serves as a breaker-wall to loosen or agitate the carbid as it asses through the restricted end thereof an thus prevent packing of the carbid in the lower hop er. as s own at h, and at one side has a notchh".

Extending horizontallythrough the valve chamber n line with the vertical center of the hopper H, is a shaft I which is journaled inbearings 7', and has a segmental bucket-valve J secured thereto which is adapted to be swung underneath the said hopper to close the same. Within the valve-chamber beneathsaid segment-valve is athird hopper or. conical tube K having its upper or large end secured to the walls of the valve-chamber and ,forming'a, chamber beneath the carbid-receptacle. Normally closing said tube is a gate or valve L' secured to a horizontal shaft M'j ournaled in suitable bearings m in the walls of the valve-chamber. This valve is somewhat shorter than the opening at the bottom of the tube K which it is designed to close against the flow of carbid, so that itmay act to shear any particles of carbid that may lodge between the end thereof and the edge of said tube, and thus permit of its being moved to its closed position where it effectually prevents the feeding of carbid into the gas-generating-chamber until a new charge The lower. edge of tube H is curved,

is needed. The space between the end of vent small particles of carbid passing therethrough; but in cases where granular carbid is used, there need be only sufficient clearance between the tube and the valve to allow the "said valve and the tube K is of a size to prev latterto enter the tube; or in such cases,-the valve may close against the edge of the tube, if desired.

Shafts I and" M extend out through thevalve-chamber through stuffing-boxes n;

, shaft I having secured to its outer end a lever O actuated by a slotted rod secured to a gas-bell, as iscommon, and rising and lowering therewith; thereby rocking shaft I V with the underside thereof curved.

set arm p extends fromthe forward end of i and upwardly extendin and causingsegment-valve J to open and close the lower end of hopper H, which serves as a continuation of the side walls of the carbid-reeeptaclei Secured to s aft I is a depending retainerlever P having. a laterally extended lows; erfifd o said laterally extending-portion, and projecting from the inner side of said arm at or near the end thereof is a pin '1). A depending-lug p iscast integrally with said arm and M direct y beneath'retainerlever and having its upper edge coneaved to correspond to the lower curved edge of said retainer-lever.

At its forward end cam S has an outwardly bracket 8 from which projects an inwan ly directed pin 3. A pin or stud 8 extends inwardly from the opposite end of said cam and betweensaid pin or stud and pin 12 on the retainer-lever, a retractile spring T is positioned, said spring being preferably used in conjunction with a "short chain't to permit the spring to hang I loosely when not under tension; one end of said spring being secured to pin .9 and its other end connected to said chain which is also connected to ping; on the retainerlever. The curved lower extended end of the retainer-lever bears against'the concaved edge of the cam-S and prevents rocking of the latter until the rear end of said lever is moved forward-of the axis of the cam, when,

through the action of spring .1 said cam is induced to rotate; but this is impossible owing to the detent-pawl engaging pin s The 'ledge r of said pawl isof sufiicient length to prevent rotation of the cam until the seg ment-valve 'isclosed, after which thedetent pawl clears pin .9 and permits the cam to rock, thereby opening the valve L.

, The operation of the device is as follows,-.

When first placing, the device in use; the parts are in the position shown in Figs. 1 to 3, in which position the retainerlever is in engagement with the cam S, and theupper strikes the underside of the ledge on t orsegment-valve is open while the lower valve is closed. The carbid-receptacle is supplied-with carbid, a portion of which enters the chamber between the hopper II and valve L. Shaft. I is now. rocked b hand, which causes the parts to assume the position shown in Figs. 5 and 6, in which position the upper valve is closed and the lower valve is open, and the retainer-lever P disengaged from the cam S. This operation causes the carbid between hopper H and valve L to be deposited into the gas generating-chamber to.

evolve gas which is directed by a suitable pipe to a gasometer of common construction of which slotted rod 0 forms a part. The gas entering the gas-bell causes the same and attached rod 0 to rise, thereby coin elling shaft I to rock and move the severa parts from the position shown in Figs. 5 and 6, to the position shown in Figs. 1 to 3. On consumption of the gas, the gas-bell lowers, and attached rod 0 causing a gradual movement of the retainer-lever I along the concaved upper edge of cam S, during which movement springT is placed under tension and exerts its power in the effort to rock the cam and shaft M to which valve L is secured, but before the rear end of the extended lower portion of the retainer-lever passes over the axis ofsaid cam, detent-pawl R rides underneath pin 19 on the cam and .retains the latter in its normal position. Meanwhile, spring T is placed under greater tension and when the ledge of said pawl has passed said in, the cam is rocked quickly, thereby causing valve L to open quickly and supply a full charge of carbld. Spring T is relaxed in both extreme positions of the various parts, and is placed under tension only during the latter portion of the forward movement of the retainer lever. During the rearward movement of the parts, the rear extended and of the retainer-lever first strikes the cam at a point in rear of its axis, causing the same to rock in reverse direction, and as the coacting corresponding edges of the retainerlever and cam are brought together, pin p 1e detent-pawl and causes said pawl to rise until the front edge of the same passes over said pin, whereupon it gravitates and stop-pin r strikes the upper side of the extended portion of the retainer-lever-and limits its further movement.

This invention is susceptible to many changes in the construction, formation and disposition of parts without departing from the spirit thereof or sacrificing any of the advantages.

Having thus described my invention, what I claiin is,

1. In anacetylene gas-generator, the combination with a carbid-receptacle, a gas generating-chamber, and a valve-chamber between the two, of two shafts journaled in the said shafts adapted to close the carbid-receptacle, a valve on the other shaft adapted to close the outlet of the valve-chamber, a segmentcam on one of said shafts, means on the other shaft co-acting with said segmentcam, a sprmg between said cam and its coacting means and normally inactive, said segment cam being held against movement until the means co-act' therewith has been moved a predetermine distance and said spring being laced under tension during the movement, 0 said c'o-act' means tocause said cam to move when sai co-acting means reaches a predetermined point. r 2. In an acetylene gas-generator, the combination with a carbid-receptacle, a generat ing-chamber, and v a .lvalve-chamber between the two, of a valve adapted to close said carbid-receptacle, a valve adapted to close said valve-chamber, shafts extending out through the valve-chamber to which said valves are secured, means to prevent movement of the second mentioned valve until after the first mentioned valve has traveled a predetermined distance, and a spring to cause the said second-mentioned valve to open after the said first-mentioned valve has traveled its predetermined distance.

3, In an acetylene as-generator, the combination with a carbi -receptacle, a gas-gen- A crating chamber, and a valve-chamber between the two, of two shafts journaled in the wall of the valve-chamber, a valve on one of said shaftsadapted to close the carbid-receptacle, a valve on the other shaft adapted to close the outlet 'of the valve-chamber, a segment-cam on the last-mentioned shaft, and means on the other shaft co-acting with said segment-cam and adapted to prevent movement of said cam in one direction until saidother shaft has been rotated a predetermined: distance also to cause movement of said cam in the opposite direction.

4. In an acetylene ans-generator, the combination with a car id-receptacle and a chamber beneath said receptacle, of a shaft extending out through the wall of the enerator, a valve on said shaft adapted to c ose said receptacle, a second shaft also extending out through th e wall of the generator, and a valve secured to said second shaft and adapted to close the chamber beneath the carbidreceptacle, a segment-cam on the last-mentioned shaft, a retainer-lever on the first' mentioned shaft co-acting with said segmentdam, a spring connecting said lever and said cam to cause the 'latter to rotate after the lever has traveled a predetermined distance alllidftmeans for rotating the first mentioned s a 5. an acetylene as-generator the combination with a car id-receptacle and a.

chamber beneath said receptacle, of,a shaft extending out through the wall of the gen- 6. In an acetylene gas-generator, the combination with a carbid receptacle and a chamber beneath said receptacle, of a shaft extending out through the wall of the enerator, a valve on said shaft adapted to c ose said receptacle, a second shaft also extending out through the wall of the generator, and a valve secured to said second shaft and ada ted to close the chamber beneath the carbidreceptacle, a cam having a concaved upper edge and a pin extending inward, a retamerlever having lateral extensions at its lower end providing a curved edge to co-act with the concaved edge of the cam and having a pivoted detentawl adapted to ride underneath the pin 0 the cam, and a sprin serving to rotate said cam when said etentpawl has passed underneath the pin on the cam.

7. In an acetylene as-generator, the combination with a car id-receptacle and a chamber beneath said receptacle, of a shaft extending out through the wall of the enerator, a valve on said shaft adapted to c ose said receptacle, a second shaft also extending out through the wall of the generator, and a valve secured to said second shaft and ada t edto close the chamber beneath the carbidreceptacle, a cam having a concaved upper dge and an offset portion at one end proed with an-inwardly directed pin, a retainer-lever having opposite lateral extensions at its lower end provided with a convex lower' edge co-actin with the concaveedge of said camf 'said lever having also a detent-pawl with an outwardly extending curved ledge which-rides underneath the in on-said cam and a depending stop adapte to strike said second mentioned shaft to limit the rearward movement of said lever, said detent-pawl servin to prevent rotation of the cam until said etent-lever reaches a cer tain point in its forward movement, and a spring connection connecting one end of said the retainer-lever.

.In testimony whereof, I have affixed my signature in the presence of two subscribmg cam with the opposite lateral extension of I AUGUSTUS E. SOHLIEDER; Witnesses:

Emu NEUHART, MAY F. Snwrm'r. 

